Data as of Nov 3, 2026

43.99.48.0/21

1 residential-proxy exit · 30 days

Alibaba (US) Technology Co., Ltd. · space held by Alibaba Cloud (Singapore) Private Limited

Announcement

43.99.0.0/17

RPKI valid

Announced by

AS45102

Type

Hosting

Risk

50 / 100 · Medium

Residential-proxy exits

Proxy exits

0.05% of its addresses · 30 days

Oct 4, 2026 – Nov 2, 2026

Exits seen per day

2 observations

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Holder	RPKI
43.99.0.0/16 since Mar 2025	AS45102	Hosting	Alibaba Cloud (Singapore) Private Limited

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Announced by

Covering announcement 43.99.0.0/17

Prefix: 43.99.0.0/17
Announced by: AS45102 Alibaba (US) Technology Co., Ltd.
Type: Hosting
RPKI: RPKI valid
Netname: ASEPL-SG
Registrant: Alibaba Cloud (Singapore) Private Limited
RIR: APNIC

Origin network

AS45102

Name: Alibaba (US) Technology Co., Ltd.
Type: Hosting
Registered: Feb 1, 2008
Domain: alibabagroup.com
Website: alibabagroup.com/
Industry: Software Development
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
43.99.0.0/16	AS45102	/24	APNIC	RPKI valid
43.99.0.0/16	AS134963	/24	APNIC	Another network
43.0.0.0/9	AS37963	/15	APNIC	Another network
43.0.0.0/9	AS45102	/15	APNIC	Too specific

IRR

Route objects on 43.99.0.0/17

Origin	Registry	Description	Maintainer	Modified
AS45102	APNIC	Alibaba.com Singapore E-Commerce Private Limited	MAINT-ASEPL-SG	Feb 25, 2021
AS134963 not the origin	APNIC	Alibaba.com Singapore E-Commerce Private Limited	MAINT-ASEPL-SG	Feb 25, 2021

43.99.48.0/21

Residential-proxy exits

Exits seen per day

Announcements

Covering announcements

Network & registry

Covering announcement 43.99.0.0/17

AS45102

Covering aggregate above, the prefix's own history below

Routing history

Route origin authorizations

Route objects on 43.99.0.0/17

Registration for this announcement

Abuse contact